<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			.a{
				width: 0;
				border: 20px solid;
				border-color: #00FFFF transparent transparent transparent;
			}
			.b{
				width: 20px;
				border: 20px solid;
				border-color: #00FFFF transparent transparent transparent;
			}
			.c{
				width: 0;
				border-width: 20px 20px;
				border-style: solid;
				border-color: #00FFFF #00FFFF transparent transparent;
			}
		</style>
	</head>
	<body>
		<div class="a"></div>
		<div class="b"></div>
		<div class="c"></div>
	</body>
</html>
